Tube frame for axminster looms



Aug. 31,1926. Q y V1(5,919353 w. H. WAKEFIELD vTUBE FRAME FOR 'AXMINSTER LOOMS Filed'Feb. 15, 192e Patented Aug. 31, 1926.

PATENT OFFICE.

WALTER n. wAKnrrnLn, or woncnsrnn, MASSACHUSETTS.

TUBE FRAME non AxivrrnsTEn :n.ooivrsaY yApplication `filed February This invention relates to improvements in tube frames such asV are employed on Axminster loomsand it is the generali object of the invention to provide an improved ear or hanger for the tube frame to cooperate withl a stop motion effective to stop the loom when eitherend of the tube frame fails to be released from the transporting chain. Axminster looms lemploy a series of tube frames which are `moved successively to weaving position y by means of transporting chains and said tube frames are held to the chain by means of hook devices movably mounted on the tube frame. A pair `of clutches move toward the tubeframe to release lthe same from the chain and thereafter move the tube frame to tuft position but it occasionally happens that although the clutches may operate. properly yet a tube may fail to be released from the chain due to some defect ofthe tube frame itself and it is desirable to stop the loom under such conditions to i prevent an empty pick in the fabric. A device for'accomplishing this result is shown in Fatentl\lo..1,546,685, to Streimer, said patent showing a rigid latch pivoted to the tube frame hanger andhaving a projection extending under the hook engaging portion of the clutch so that should the tube frame fail to be released the clutch will be held in raised position and devices oper-ated in timed relation with the clutch will act to stop the looi rlhe hook as shown in said patent is a difficult one-to make because of the projection `and it is an important object of my invention to provide a hook vformed from flat stock to cooperate with a tube frame hanger a portion of which is struck out to receive the hook and extends beyond the plane of the hook to cooperate with the stopping mechanism of the loom.

lt is a further object of the invention to employ the 'general-Y construction shown in Patent No. 1,462,520, to Ryon but to use material wasted in -Ryon to accomplishV the stopping set forthl inthe Streimer patent without the expensive hook of the latter construction, g

l/Vith these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

v In the accompanying drawings wherein l 15, 1926. Serial N0. 88,187.

invention AFig. l is an end elevation of the tubeframe releasing arm of an Axminster loom, taken from the right hand end of the loom, certain parts being inV section, l

Fig. 2 is an enlarged end. view of a tube frame looking in the direction in which Fig. 1 isr taken, Y Fig. 3 isl a vertical section on line 3-'3 of Fig. 2 showing the parts in normal position with the tube frame supported by the transporting chain,

Fig. t is a horizontal detail section on line have shown a convenient embodiment of my 4.4 of F ig. 3 showing. the releasing clutch in operative position,

F ig. 5 is a View similar to Fig. 3 but show` ing the clutch moved downwardly and supported by a portion of the tube frame" hanger in such position as will stop the loom, 1

Fig. 6 is a fragmentary end elevation of the lower portion of the hanger of the tube frame with the hook removed, and

: Fig. 7 is a section on line 7-'e70f Fig. 6. Referring to the drawings it will be seen that I have provided a tubularmember 10 formed of a hollow, rectangular, metallic pipe to which is secured an ear or hanger 11 having an upwardly extending spool bearing arm 12 to support the gudgeon 13 of a yarn spool 111.l Said spool bearing isprovided with an arm 15 extending into the tubular member 10 and held thereinv as by screws 16.- A second chain engaging member 17 has an upwardly extending tongue'18 which ex tends between the inner and outer links 19 and 20, respectively, of a transporting chain and said member 17 is provided with. Va horizontal arm 21 secured to the bottom of the tubular member by screw 22. v

A rigid chain engaging hook latch 23 has formed thereon a hooked end 24 to engage the link 19 of the transporting chain and is provided with a bent portion 25 whichextends through a slot 26 formed in the bottom of the member 17, the inner end of the hook beingk bent upwardly yfrom the portion 25 and extending horizontally yas at 27 adjacent to the arm 15. 'A Vcompression spring 28- is located between the arms 21 and27 and serves normally to push the. hook 23. outwardlyinto holding engagement with the link 19 -as shown in Fig. 3. The portion of the member 17 lying immediately under the c rounded part 25 of the hook latch 23 is formed as a tongue 29 on the Vmember 17, said tongue being bent outwardly whenthe hook is being` inserted and then being Vbent back into the position shown in Figs 3 and 5 after the hoolr'ha's been inserted in'fplace.

' tQngue'ZQ outwardly as shown -atf40 soi thatl thesame willextendfbeyondthe plane of the outer face'of.- the latch 23. ,Thslatter' result ymay be given further-effect,bywformngthe ton-gue29 withanupwardly extending lug 41 of less width than the s101326 so that; the 1215011.23' will have holding engagement with the upper portion ofthe slot 26 below thefrecess 4t2 which remains after the lug 41 has been struck out. r

,'Tlle tube frame formed as herein described is adapted to cooperate. with loom stopping mechanism ofthe. type set forthinthe aforesaidStreimer,patent and a portion of whiohgis shown inFig. l Asshown @1311,50 moves about pivot. 5l from the full line raised position lto the Ydotted line low-y ered position by actuating rod*y 52 which is lowered at the proper time in the operation of the. loom to. move the'tube frame to tuft forming'pos'ition. .As the arm 5() de` f scends itwill depress a rod which operates through mechanism not shown to prevent the stopping of the loom7 but should the army 5() be held in raised positionk rod 53will not depressed landV the stopping mechanism will operate to arrest the'loom.

The connection between the arm rand the @bain which serves to holdsaid arm 5()` in raised position comprises: a lever 5ft pivoted to the arm as `at and'fhaving mounted thereon a clutch 56 which Swings about a stud 5701i, the'lever- 54 under influence otrod 5.8. -The clutch 5,6.-'is provided with vertically extending flaredwings and a' bot-A toni wing 60. The upright body yof the clutch is pro-vided witha vertical groove. or

recess 61 located. between suraces62 which engage, the membervl, thefrecess receiving the projecting end 40' odithe tongue '29, `Adjustable screw *63-is mounted in the upper part 'of the `clutch 5 6 and extends s ligl'itly into the upper portion of the recess 61 and normally' engages the latch 23 as the clutch is. moved inwardly: from the' position shown inFiig. Sgtothait'shbwnin. Fig. ft!

' Under normal conditions vwhen Lthe clutch moves toward; the ,tubeframe. the hook V23. will bre-released from the transporting chain and the tube frame willbensupported on the Lower wing I and gui'dedfasto verticlzall position by the vertical wings 69. The;Wallis:V

details `herein 62 will press against the member 17 and the hook member will lie in the recess 61 in a manner which is old in the art. As the rod l52 moves downwardly the tube frame will move to tutty forminor position. Should an accident happen to the hook, however, and

the same be bent to somev such a position as n shown in F ig. 5, it will not be entirely free from ,the Vtransporting chain and Awilly be heldin raised position thereby so that as the clutch 56 movesV downwardly the stud 63fwill engage kthe outwardly bent end of tongue 29zas shown in Fig. 5' and rod 53 will be permitted to remain in raised-'position toV stopY theloom. f

-From the foregoing willbe seen that I have provided averyisimple means for stud nor the tongue interferes ywithfthe proper contact betweeny th'efvertieal walls 62 and the'member 17.

"Having thus described myl invention it willbe apparent that changes and modifications may be made therein without depart-- Ving :trom the kspirit and scope ofthe inven- -f tion7 and I do not-Wishto be limited to the disclosed but what-I claim 1s:' r l ,pr

1. In a tubeframe for I1i-loom having a. downwardly movingv tube frame' supporting member to cooperate vwith stopping mecha` nism and a transporting-chain, a'chain engaging element secured to the tube frame,A a

:chain engaging hook member havingplvotal connection with the element and ex tending through said element, said element havingia portion thereofundcr the hook member to extend beyond the outer face' of` said hook memberfor engagement witha portion4 of the member normally operative to move the tube yframe to tuftvforming posiy tion. 1

' vv2. In a tube frame-foreloom having a downwardly moving tube frame supporting member to, cooperate with stopping mec-hanism 'anda transporting chain, ai chainen-l gagingelement secured to the tube tramel a hook member having pivotal connection with the element and positioned 'to' enggethe' chain, anda tongue struck from tenerle#y y ment to define, the space through which hook member extends, said tongue extending beyondz thehook member 'to lie vertice-lily under aportion of the means tol move the tube frame toA tu-t forming position, l A 3. In: a'tubeg haine-'for' a loomhavfing' a downwardly moving tube, 'frame supporting member to cooperate With stopping mechanism and a. transporting chain, a chain engaging element, a hook member for the chain having pivotal connection With the element, a portion of the element being bent outwardly beyond the hook member to form an opening 'through the element for the passage of the hook member, said portion being bent outwarcily beyond said hook member for engagement with a partV of the means O which normally moves the tube frame to tutt forming position.

In testimony whereof I have hereunto affixed my signature.

WALTER H. WAKEFIELD.

Certificate of Correction.

It is hereby certiiied t-hat Letters Patent No. 1,597,988, granted August 31, 1926, upon the application of Va-lter H. Wakefield, of Worcester, Massachusetts, for an improvement in Tube Frames for Axminster Looms, Were erroneously issued to the inventor, said Wakefield, as owner of said invention, Whereas said Letters Patent should have been issued to Crompton c@ Knowles Loom W Orks, of Worcester, lllassasotusetts, a corporation of Massachusetts, said corporation being owner of the entire interest in said invention, as shown by the records 0f assignments in this oiiice; and that the; said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 5th day of October, A. D. 1926.

[SEAL] M. J. MOORE,

. Acting @atari/ssz'oaer of Patents. 

